Printing-telegraph



(No Model.) 5 SheetsSh -3et 1.

O L. KLEBER.

. PRINTING. TELEGRAPH. No. 575,830. Patented Jan. 26, 1897.

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0. L. KLEBER.

PRINTING TELEGRAPH.

No. 575,880. Patented Jan. 26, 1891 I'I I F1 8 WITNESSES an m, @scwr J?fla a. Zia #W 1 n cowuommwo wAsmNG ON u. c.

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- PRINT EL G APH.

No. 575,830. v Patented Jan. 26, 1897.

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5 Sheets-Sheetfi. O. L. KLEBER. PRINTING TELEGRAPH.

No. 575,830. Patented Jan. 26, 1897.

INVENTOR @s cm- WITNESSES.

NITEI) STATES PATENT OFFICE.

OSCAR L. KLEBER, OF PITTSBURG, PENNSYLVANIA.

PRINTING-TELEGRAPH.

SPECIFICATION forming part of Letters Patent No. 57 5,830, dated January26, 1897.

Application fil ed July 18, 1895.

T0 60% whom it may concern:

Be it known that I,()SCAR L. KLEBER, a citizen of the United States,residing at Pittsburg, in the county of Alleghenyand State ofPennsylvania, have invented a new and useful improvement inprinting-telegraphs which have a re'voluble shaft carrying a type-wheel,together with a series of toothed selectingdisks and spacing-wheelsseverally operated on by electrically-controlled fingers that shift fromone disk and wheel to another in such manneras that any letter, numeral,character, punctuation-mark, or other arbitrary sign on the type-wheelagreeing with a trans mitted telegraphic signal will be brought and helddirectly opposite a predetermined point, substantially in the mannershown and described in the patent, No. 521,170, granted me on the 12thday of June, 1894, and the patent, No. 5314M, granted me on the 16th dayof April, 1895, of which the following is a specification.

My present invention comprises the abovementioned elements constructedand adapted to operate in combination with an automatically-actingpapenfeeding and printing device, whereby the letters, numerals, &c., onthe type-wheel are brought around to the proper point and printed on asheet of paper in words and sentences arranged as required, all of whichwill be readily understood from the following description, taken inconnection with the accom panyiug drawings, where- Figure 1 represents aplan or top view of the entire contrivance; Fig. 2, a front elevation ofthe same; Fig. 3, a transverse vertical section on the line C C; Fig. 4,a detached portion of said section; Fig. 5, a transverse verticalsection on the line D D; Fig. (5, a detached portion, in vertical planeB B, of the mechanism designed to shift the paper upward and space thesame inparallel lines; Fig. '7, a transverse vertical section of theapparatus on the line A A; Fig. 8, a perspective view of a small portionof the type-wheel and stripper; Fig. 9, an elevated detached portion ofthe letter and word spacing mechanism in gear and operating position;Fig. 10, a similar view of the same parts when out of gear; Fig. 11, adetached perspective view of Serial No, 556,393. (No model.)

the principal features of so much of the mechanism as is used incombination with the armature-bar of an electromagnet and anautomatically-acting electric switch, represented in open position; Fig.12, a portion of same mechanism, showing the electric switch closed.

This print-in g-telegraph ,as I have constructed it, consists of asubstantial table, stage, or base 1, upon which is erected a suitableframe 2, having in fixed bearings a long horizontally -arrangedrevoluble shaft 3, the outer end of which is supported by and journaledin a vertical post 4, surmounted by an ink-bearing roll 5. This shaft 3is provided with a wheel 6, which has alphabetical letters,numeral-characters, punctuation-marks, &o., arranged as shown and inrelief around its periphery. That portion of the type-wheel shaftbetween the walls of the main frame 2 is provided with a series oftoothed selectingdisks, toothed spacing-wheels, a cam-wheel, andinclined slides for moving the fingers across the faces of theirrespective wheels, as shown and described in my hereinbefore-mentionedpatent, No, 5373M; and at a point near the cam-wheel the shaft has asmall collar 7, from which projects a single tooth 8, that operates inconjunction with a pivoted clutch 9 to suddenlystop rotation of saidshaft at each complete rotation thereof. On the opposite side of thegroup of selecting-disks said shaft 3 is also provided with anoutwardly-projecting rod or finger 10, that revolves therewith, theobject of which will hereinafter be explained, and this portion of saidshaft 3 has affixed thereon a small pinion 11, in gear with intermediatetoothed wheels 12, connecting the same with a drum 13, around which iswound a cord 14:, attached to a weight 15, which when released givesrapid rotation to the type-wheel shaft 3 and its permanent attachmentsin such direction as that their upper surfaces shall move toward thefront of the apparatus.

Properly secured to the base-plate at or near the middle of the mainframe 2 is an electromagnet 16, provided with an iron armature affixedto a horizontally-arranged non-magnetic bar 17, pivoted to the frame,and from its pivotal axis this bar 17 is provided with adownwardly-extended hook 18, connected by means of a spiral spring to anadj usting-screw that passes through a stationary post, whereby thetension of said spring will cause said bar 17 and its armature toquickly move upward when freed from downward magnetic attraction. Thisar1naturebar 17 is also provided with the usual thumb-screws, by whichthe extent of its movements may be regulated. The forward end of thisarmature-bar 17 has on each side thereof a laterally-extending pin, thatby downward action temporarily withdraws the fingers from theirrespective selectingdisks and spacing-wheels, precisely in the samemanner shown and described in my Patent No. 537,464. The opposite orrear end of this armature-bar 17 in its upward and downward movementsgoverns the action of the printing device, the construction andoperation of which are as follows:

A suitable distance behind the type-wheel shaft 3, and in a verticalplane parallel thereto, is an oblong rectangular frame 19, firmlysecured to the base-plate of the apparatus. Close beside and directly infront of this oblong frame 19 is arranged a smaller open frame orcarriage 20, adapted to slide back and forth on the former, guided bylittle wheels 2l,which run in a grooved track along the rail 22 of saidoblong frame. To this carriage is attached a toothed rack 23, whichmoves intermittingly the extent of one tooth on each revolution of asmall worm-wheel 24 in engagement therewith. This worm-wheel 24 issecured on a driving-shaft 25, which has that end journaled in theprojecting arm of a slide 2o, adapted to move up and down in suitableguides 27, fixed to a vertical bar 28, permanentlyattaehed to the oblongframe 1. Said slide 26 is provided with a backwardly-projeeting pin 29,that extends through an oblique slot 30 in the npperend of a lever 31,pivoted to said vertical bar, and this lever 31 has at a point betweenits pivotal connection and its oblique slot 30 a short projecting pin32, pressed upon by a curved spring 33 in such manner as that said pinwhen moved on either side of a vertical line will cause said lever 31 tocomplete its action quickly. A movement of this lever in one directionwill bring the wormdvheel 24 properly in gear with the toothed rack 23,and keep it there until an adjustable stop 34 on the car riage comes incontact with the lower end of said lever and by striking against thesame cause it to suddenly reverse its position and lift the worm-wheel24 free from the rack, thus liberating the carriage, which isinnuediately drawn back to the other end of the stationary frame 19 bymeans of a cord 35 and weight 36. This movement brings the lever 31 inabrupt contact with a fixed stop 37, which effects a reversal of saidlever, thereby placing the worm-wheel again in gear with the rack readyfor repeated action. The opposite end of the worm-wheel shaft 25 has asmall pinion in gear with a suitable train of toothed Wheels 38 and adrum 39, around which is wound a cord 40, provided with a weight 41 togive quick rotary movement to said worm-wheel; and this portion of saidshaft 25 is also provided with a laterally-extending arm 42, that oneach revolution of the same comes in contact with a small pin 43,projecting from the side of an obliquely-arranged bar 44, which has aslot in each end severally astride of a pin 45, that guides said bar 44in an np-and-down movement sufficiently far to first bring said pin 43in the pathway of the revolving lateral arm 42 to stop the same and atproper time withdraw it. The downward movement is effected by means of aspring 46, which presses on top of said oblique bar 44, and its upwardmovement is brought about by means of a small cam or projecting tooth 47on the typewheel shaft 3 coming in contact with the square shoulder ofan angular notch 48 in the under edge of said oblique bar, whereby it islifted, raising its side pin 43 out of the way to let the lateral arm 42of the worm-wheel shaft 25 pass and make a complete revolution, when itwill be caught by the aforesaid pin 43, which has returned to its formerposition. The end of this sliding carriage 2O nearest theselecting-disks is provided with a lever 40, in connection with apivoted pawl 50 and circular ratchet-wheel 51, so constructed andarranged as that the carriage 20, under the i'nfluence of its cord 35and weight 30, will, in completing its travel in that direction, bringthe arm 49 of the pawl 50 directly upon and cause it to rapidly slidealong the edge of an upwardly-inclined stationary bar 52, thereby givingthe ratchet-wheel 51 and its shaft 53 a partial revolution, and toprevent return movement of said ratchet-wheel a light springelick 54engages the tooth thereof. The shaft 53, to which the ratchet-wheel isaffixed, ex.- tends horizontally along and back of the sliding carriage20, moving with it, and each end of said shaft 53 is provided with aplain wheel 55, in front of which is arranged a similar but smallerwheel 50, journaled in the upper end of a pivoted lever 57, which hasits lower portion forced outwardly by means of a coiled spring 58,whereby the peripheries of said plain wheels are kept closely together,so as to hold with yieldlng contact an interposed sheet of paper andmove it in accord therewith.

Supported in bearings and arranged close behind the stationary openframe 19 and parallel thereto is a horizontal rock-shaft 59, and to itis affixed the handle end of a long-nosed hammer 60, which from itspoint of connection extends laterally a short distance and then turnsupwardly, forming a sort of elbow, under which is placed a spring 01 tothrow the hammer forward at the movement of release and cause its noseto pass through a hole (32 in a thin plate 03 and strike a sheet ofpaper against any letter of the type-wheel opposite thereto. An upwardcontinuation of this hammer-handleforms a rod (34, that when the hammerswings to and fro opens an electric switch 65, but does not close thesame only upon a full and complete stroke of the hammer.

On the other end of the shaft to which the hammer is attached are tworadiallyprojecting arms of unequal length arranged a little distanceapart and nearly in the same horizontal plane. The longer arm 66 extendsalongside a toothed plate-wheel 67, but out of contact therewith. Theteeth of this wheel are widely separated, and the shorter arm 68 isarranged to have its free end between said teeth. This toothedplate-wheel is secured to an axle supported in proper bearings and isfitted with a pinion 69, engaged with the teeth of a larger wheel 70,provided with a drum 7] around which is a cord 72, supplied with aweight 73 to produce rotary movement of the plate-wheel when released.In the same plane and behind the plate-wheel is arranged a pivotedescapement-lever 74, provided with a short hook 75 at its upper end,which catches the teeth of said plate-wheel as they move around, beingactuated in that respect by means of a spring 76, which presses thelower end of said escapement-lever outwardly. A reverse movement of thislever and consequent release of an engaged tooth is accomplished by apin 77 extending from the extreme tail end of the armature-bar 17 whichpin slides over and depresses an angular projection or heel 78, formedon the lower end of said escapement-lever. Thus each up-anddown movementof the armature-bar 17 withdraws the hook 75 from the plate-wheel 67 andreleases a tooth. A link 79, jointed to this portion of saidarmature-bar 17, connects the same to one end of a long pivoted lever80, its opposite end being directly over the longest arm or tappet 66 onthe hammer-shaft 59, and said lever 80 is provided with a vertical screw81 to regulate the distance between said lever and the tappet. Theplate-wheel 67, being constantly under influence of a suspendedweight,is always ready to respond, and as each up-and-down 'movement ofthe armaturebar 17 releases the wheel 67 it escapes tooth by tooth.which successively strikes downward the shorter arm or trip 68 on thehammershaft and draws the hammer back, which is immediately and as oftenthrown forward by the action of its spring 61 keeping up a sort ofvibratorymovement. During such time as the screw end of the lever 80 isdepressed it prevents a full forward throw of the hammer. An elevationof this end of the lever gives freedom to the arm 66 and enables thehammer to accomplish a full and complete stroke. This full stroke causesthe rod 6% on the hammer 60 to come against a projecting incline 82 ofthe pivoted switch 83 and force that portion between the jaws of aspring-grip 84, leaving it in lingering contact therewith until the rod64: in returning to its former position withdraws the switch by oppositeaction.

A second electromagnet 85 is arranged verpleting the main circuit.

tically near the front of the apparatus, and its armature 86 is securedto the forward ends of a pair of arms 87, pivoted to the main frame 2.When released from magnetic attraction, this armature 86 is forcedupward by means of a spring 88, connecting the same to anadjustingscrew. On this armature 86 is a vertical post 90, to the top ofwhich is fastened a broad flat spring 91, that operates to press theselecting and spacing fingers against their respective wheels. Adownward pull of said armature 86 draws the broad spring 91 away fromsaid fingers.

This apparatus is designed and constructed to operate by means of anelectrical battery 93 or suitable generator of electricity in connectionwith a main line of communication used to transmit Morse telegraphic orany other arbitrary code of signals, and to this end it is made tooperate in conjunction with a telegraphic communicator-key 94 or meansfor producing such signals. Assuming that the line-wire is properlyconstructed, on depression of the transmitting-key 94 the circuit willbe closed and the electrical current will pass from the positive elementof the battery along the wire e, leading therefrom to a post f of thereceiving apparatus, to which the message is addressed, thence by wire ginto the electromagnet 16, arranged near the middle portion of thereceiver, thence by wire h to a post i, and from the same by a wire J,that may be grounded or connected to the proper post it of thetransmitting-key 94, thence to the pin or anvil upon which the buttonend of the key is pressed, thence through the transmitting-lever 96 to asimilar post Z, and from the same by wire m to the negative elem ent ofthe battery, thus com- W'hen the main circuit is open and the hammer 60by full stroke closes the switchSl, an electrical circuit isestablished, starting from the positive element of same battery, thenceby the wire 6 to a post a in front of the receiver, thence throughelectromagnet 85, thence to another post 0, thence by wire p totheclosed switch 83, thence by wire r to a post near the trans-1nitting-key, and from thence, by wire m to the negative element of thebattery. Closing of the main electrical circuit energizes itselectromagnet 16, whereupon its armature will be drawn down, depressingthe forward end of the pivoted armature-bar 17, which by means of itslateral pins at that end will with; draw the fingers from theirrespective selecting-disks and spacing-wheels. At thesame time and bythe same movement one of said lateral pins will force backward the lowerend of the pivoted clutch 9, and its upper end will force the tooth Softhe permanent collar 7 on the type-wheel shaft 3, permitting it torotate, carrying with it the selecting-disks, spacingwheels, type-wheel,and all the appliances rigidly attached thereto, until the liberatedfinger adapted to operate on the selectingdisks comes in contact with atooth, thereon to bring a corresponding letter on the typewheel to ahalt at the proper place. On each complete revolution of the type-wheelshaft the tooth 47 of the collar will so act against the square shoulderof the notch 48 in the oblique bar 44: as to lift the same, and therebydraw its trigger-pin 43 free from the arm 42 011 the worm-wheel shaft25, which will then make one complete revolution, causing saidworm-wheel 2* to move the rack and its carriage the extent of a singletooth. A roll of paper of suitable width having previously been placedin a cabinet beneath, and its free end brought up through a convenientslot in the base of the apparatus, and the edges of said paper arrangedvertically in grooved guideways formed in each end of the carriage, andalso in the bite of the plain-faced rolls 55 and 56, it willconsequently move with the carriage on each rotation of the worm-wheeland properly space the letters along a line from right to left. Uponreaching the terminus of the line the worm-wheel 2% becomes disengagedfrom its rack in the manner and by the means hereinbcfore set forth.Then the carriage will be rapidly drawn in an opposite direction bymeans of the cord 35 and weight 36 attached thereto, and in completingits rapid transit the arm 49 of the pawl 50 will move along theupwardly-inclined bar 52, thereby producing a partial rotation of thecircular ratchet 51 and plain-faced rolls 55 and 56, and by suchoperation the interposed sheet of paper will be shifted upwardsufficiently to make separate lines and dispose them in regular parallelorder. At the same time the relation of the worm-wheel and rack will berenewed, as previously set forth, whereby the operation of spacing theletters, words, and sentences and forming other lines maybe re peated.As movements of the message-transmitting key 9i are responsivelyimitated by the pivoted armature-bar 17 at the receiving end of theline, an electrical impulse will cause an elevation of the rear end ofsaid bar and by such action depress the free end of its connectedstop-lever. At the same time and by the same action the escapement-hookwill release one tooth of the plate-wheel G7, which will then quicklyrotate, causing a diametrically opposite tooth to act downwardly on theshorter arm or trip 68 of the rock-shaft 5.) in such manner as to drawback the hammer 60 and liberate the same for a forward stroke, madeincomplete by the longer arm 66 coming against the depressed end of saidstop-lever 80. As the escapen'ient-hook immediately returns to theplate-wheel, it catches the next succeeding tooth, thereby preventingits further rotation until liberated by subsequent action. As theseseveral and joint operations occur 011 each closing of the electricalcircuit, it is obvious that no complete stroke of the hammer can takeplace at such time, but as opening of said circuit releases the armature17 from magnetic attraction it immediately resumes its normal position.Its rear end will therefore become depressed and the free end of itsconnected stop-lever elevated. This reverse action will bring about suchmovements of the escapement-lever 74 as will liberate another tooth ofthe plate-wheel 67 and by quick return engage the next succeeding tooth.Meanwhile a diametrically opposite teeth of said plate-wheel will havepressed down and passed the shorterarm (S8 of the rock-shaft 59, drawingback and releasing the hammer (30, and as the free end of the stopleverat such time is elevated beyond reach of the longer arm 66 there isnothing to prevent a full and complete forward stroke of the hammer.Consequently it will strike against the type-wheel 6 or an interposedsheet of paper, so as to make an imprint of the nearest type thereon. Asaforesaid, this full stroke causes the upwardly-extending rod Gt of thehammer to close the electrical switch 83 and leave it closed until abackward movement of the hammer opens it. As the first-mentionedelectrical circuit is broken to permit a full stroke of the hammer, itis evi' dent that a closing of this switch will estab lish an electriccurrent directly through the elcctromagnet 85 in front of the receivingapparatus and draw down its armature-bar 86 which by connected andintermediate appliances liberates the type-wheel shaft for immediaterotation, causing the teeth 47 on its fixed collar 7 to lift the obliquebar 44 and draw its pin 43 away from the arm 42 of the orm-wheel shaft25, which will then make a complete revolution, thereby shifting thepaper to suitable position for the imprint of another and succeedingletter.

From the foregoing description it would seem that the hammer makes afull forward stroke every time the first-mentioned circuit is opened,and such would be the case if the electrical circuit remained open atime sufficient for the hammer to complete its forward movement; butwhen such stroke is not required the same may be obviated by closing theelectrical circuit before the hammer has completed its stroke. Thisaction will operate the armature-bar 17 and cause the escapement-lever7a to liberate a teeth of the platewheel 67, and as its rotary motion ismuch quicker than the action of the hammer 60 a diametrically oppositetooth of said wheel will meet the upward movement of the shorter arm (58of the rock-shaft and by interposition catch the hammer on the fly andprevent completion of its stroke. Thus the hammer may be made to strikea distinct single blow or a succession of blows or withheld andprevented from striking at and during any particular time. All movementsof the messagereceiver are automatic, therefore mechanically precise,and may follow each other with great rapidity. Fol-instance, a rotationof the type-wheel to bring any desired character or letter thereon tosome predetermined point, a movement of a sheet of paper to receive theimprint of such letter, and the operations of a hammer to make saidimprint 'areeifected in the apparatus at the receivin'gendiof the lineby the electrical transmission of mes sages in accordance with the Morsecode of signals, and any electric-telegraph operator skilled in theartcan produce the same.

Having thus descnb eam'y improved print- I jug-telegraph, I claim'.

from the selecting-disks.

2. A printing-telegraph,comprising'an' electrical circuit, anelectromagnet in said circuit, avmessage-transmitting key, a revolubletype-Wheel, a series of concentrically-arranged selecting-disks,a'pivote'd fii'igerwhich will move from one disk to the other andthereby control the action of the type-Wheel, an automatically-actingpaper-feeding device, a printing-hammer, a toothed Wheel Which by itsrotation Will operate and govern the strokes of said hammer, and anelectrically-controlled escapement-lever to control the movements ofsaid toothed wheel,whereby the hammer will be liberated to make aforward stroke on each opening of said circuit and can be arrestedbefore completing its stroke by closing the circuit.

3. In a printing telegraphic apparatus, the combination, consisting of atype-Wheel and suitable selecting-disksaffixed on a revoluble shaft, apivoted finger adapted to shift from one selecting-disk to the other andthereby control the movements of said type-Wheel, an electric circuit,an electromagnet in said circuit, a message-transmitting key, anautomatically-acting paperfeeding device, a printing-hammer, a Wheelwith radial projections that in their revolutions operate and governsaid hammer, an escapement-lever which controls said wheel, and anelectromagnetic armature that in its upward movement will liberate atooth of said wheel, and in its downward movement liberate the next orsucceeding tooth.

4. Aprinting-telegraph comprising an electrical circuit, a revolubletype-wheel, a series of selecting-disks, a pivoted finger which willmove from one disk to the other and thereby control the actionof thetype-Wheel, a message-transmitting key forsendin g electric impulsesthrough said circuit, a paper-feeding device, a printing-hammer operatedby the revolutions of an escapement-wheel, an escapement-levercontrolled by said electric impulses to permit and arrest rotation ofsaid 'ivh'eel, whereby theham'in er in heliberated to m keiajfor'Wardstroke on each openi ng' of said circuit and arrested beforecompleting 'said stroke by closing of the electric circuit.

5. A printing-telegraph comprising an electrical circuit, amessage-transmittingdevice, a revoluble type-wheel. a number ofselecting-disks, a fin'ger t'hat will shift from one disk to the otherand control the movement of the type-Wheel, a paper-feeding mechan-"ism,a printing-ham mer, an escapement-Wheel liberated by transmittedelectrical impulses, and means for controlling the action of saidescapemem-whei and hammer.

(5. A printing-telegraph consisting of an on ganized mechanismcomprising an electrical circuit,- a inessage transm'itting key, arevolub.e type-wheel, a number of concentricallyarrangedselecting-disks, a finger thativill shift from on e'disk to the otherand control the movement of the type-wheehan automatically-acting paperfeeding device, a printing- 'han'm'ler, a wheel provided with teeth orpro-.

jections that govern said hammer, an-esc'apc- I'ne'nt-le'verthatcontrolssad toothed wheel, and an electromagnetic armature that in its upwardmovement will liberateonetooth of said wheel and 'in its downwardmovement liberate the 'n'e'zit succeeding tooth.

7. Ina prin ting-telegraph, the combination of an electrical circuit, amessage-transmitting key, a revoluble type-wheel, a number ofconcentrically-arranged selecting-disks, afinger that willshit't fromone disk to the other and control the movement of the type-Wheel, anautomatic paper-feeding device, a printing-hammer, a wheel provided withprojecting teeth, an electromagnetic armature, an escapement-leveroperating on the teeth of said Wheel in such a manner as that one toothis liberated on each upward movement of said armature and in itsdownward movement the next succeeding tooth is liberated.

8. In a printing-telegraph, the combination of a type-wheel affixed on arevoluble shaft, a number of selecting-disks,and spacing-wheels on thesame shaft,-a hammer attached to a rock-shaft, a spring for imparting-tosaid hammer a forward stroke, a laterally-extending arm or trip on' saidrock-shaft, a wheel provided with teeth that successively act onsaidtrip to draw back the hammer and release the same, anescapement-lever to govern rotation of said Wheel, an electromagneticarmature that in each up-and-down movement will act on theescapement-lever and release said wheel tooth by tooth, a pivotal leverwhich, on each downward movement of the armature, will come in contactwith the arm of the rock-shaft thereby preventing the hammer from makinga full forward stroke during such time.

9. In a printing-telegraph, the combination, consisting of a stationaryframe, a carriage adapted to slide thereon, a toothed rack pro- Videdwith a Worm-Wheel to move said carriage in one direction a certaindistance and release the same, a cord and suspended weight attached tosaid carriage whereby it will rapidly travel in a reverse direction andcause the worm-wheel to reengage its rack, a circular ratchet on a shafthaving at each end a plain roll adapted to operate in conjunction withan adjacent roll, between which the paper is inserted, a long lever andsuit-able pawl pivoted to said circular ratchet, and a stationaryinclined bar upon which said long lever is made to slide as the carriagecompletes its rapid travel, whereby said circular ratchet and connectedrolls are given a par tial rotation and correspondingly move a sheet ofpaper in the bite of said rolls.

10. In a printing-telegraph which has a type wheel and suitableselecting-disks ailixed on a revoluble shaft and a fingeradapted to movefrom one selecting-disk to the other and engage them separately, incombination with a carriage adapted to move a sheet of paper across theperiphery of the said type-wheel, a pivoted hammer adapted to strike thepaper against an adjacent letter on the type-wheel, a toothed wheel anelectric circuit and an electromagnetic armature, that on closing ofsaid circuit will release a toothed wheel which will draw the hammerback and release the same, a lever that on elosin g of said eircuit willinterpose and prevent a complete forward stroke of said hammer, andwithdraw 011 opening of said circuit to permit said full forward stroke.

11. In a printing telegraphic apparatus which has a type-wheel andsuitable selectingdisks affixed on a revoluble shaft, and a fingeradapted to move from one selecting-disk to the other and engage themseparately, in combination with a carriage adapted to move a sheet ofpaper across the periphery of said type wheel, a pivoted hammer adaptedto strike the paper against an adjacent letter on said type-wheel, anelectric circuit and an electromagnetic armature, a toothed wheel thatwill draw the hammer back and release the same, a lever that willinterpose and preventa complete stroke of the hammer during the timesaid circuit remains closed, and withdraw, on opening of said circuit,to permit a full forward stroke of the hammer, an escapement-lever thatby closing of said circuit will liberate the toothed wheel and interceptthe hammer.

OSCAR L. KLEBER.

\Vitnesses:

JOSIAH W. ELLs, D. LOABLE.

